;; Copyright 2020 Google LLC
;;
;; Licensed under the Apache License, Version 2.0 (the License);
;; you may not use this file except in compliance with the License.
;; You may obtain a copy of the License at
;;
;;     http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an AS IS BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.

(library (test even)
  (export do-test)
  (import (rnrs))

  (define (do-test)
    (and (even? 0)
         (even? 2)
         (even? -2)
         (not (even? -1))
         (not (even? 3)))))
